code: def run(self):
      self.w.run()
      print(self.w.counter)
  
file_path: pytorch-lightning/examples/app/interruptible/app.py
imports: from time import sleep
  from lightning.app import CloudCompute, LightningApp, LightningFlow, LightningWork
label_desc: Use image node_id 2 for calling the Flow obj's underlying member method code with example usage: obj.run() without return types